BLOWOUT-PREVENTER-STACK ONE-TRIP TEST TOOL AND METHOD

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EP 3 292 266 B8

(12)	CORRECTED EUROPEAN PATENT SPECIFICATION
	Note: Bibliography reflects the latest situation

(15)	Correction information:
	Corrected version no 1 (W1 B1)

(48)	Corrigendum issued on:
	26.08.2020 Bulletin 2020/35

(45)	Mention of the grant of the patent:
	15.04.2020 Bulletin 2020/16

(21)	Application number: 15891383.0

(22)	Date of filing: 11.06.2015

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International Patent Classification (IPC):

E21B 33/038^(2006.01)
E21B 33/064^(2006.01)
E21B 41/00^(2006.01)
E21B 17/02^(2006.01)

E21B 33/06^(2006.01)
E21B 33/068^(2006.01)
E21B 34/04^(2006.01)

(86)	International application number:
	PCT/US2015/035386

(87)	International publication number:
	WO 2016/178699 (10.11.2016 Gazette 2016/45)

(54)	BLOWOUT-PREVENTER-STACK ONE-TRIP TEST TOOL AND METHOD EINSTRECKEN-PRÜFWERKZEUG FÜR PREVENTERGARNITURSTAPEL UND VERFAHREN OUTIL D'ESSAI NON RETOUR DE BLOC D'OBTURATION DE PUITS ET PROCÉDÉ

(84)	Designated Contracting States:
	AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

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Priority:

05.05.2015 US 201514704646

(43)	Date of publication of application:
	14.03.2018 Bulletin 2018/11

(73)	Proprietor: Backoff, LLC
	Sulphur, Louisiana 70663 (US)

(72)	Inventors:
	WILLIAMS, Brian Purvis, Mississippi 39475 (US) LAFLEUR, Gregory Sulphur, Louisiana 70663 (US)

(74)	Representative: Klang, Alexander H.
	Wagner & Geyer Partnerschaft mbB Patent- und Rechtsanwälte Gewürzmühlstrasse 5 80538 München 80538 München (DE)

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References cited: :

US-A- 3 675 719
US-A- 4 648 445
US-A- 5 730 218
US-A- 6 032 736
US-B1- 6 296 225

US-A- 3 958 049
US-A- 5 730 218
US-A- 6 032 736
US-A1- 2004 231 856
US-B1- 7 334 634

Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention).